261833728

素因数分解:

$2^{10}\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{89}}^1$

素因数の和:152

約数の個数: 132

約数和(自身を含む): 606853620

約数和(自身を除く): 345019892

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 89, 104, 128, 136, 169, 178, 208, 221, 256, 272, 338, 356, 416, 442, 512, 544, 676, 712, 832, 884, 1024, 1088, 1157, 1352, 1424, 1513, 1664, 1768, 2176, 2314, 2704, 2848, 2873, 3026, 3328, 3536, 4352, 4628, 5408, 5696, 5746, 6052, 6656, 7072, 8704, 9256, 10816, 11392, 11492, 12104, 13312, 14144, 15041, 17408, 18512, 19669, 21632, 22784, 22984, 24208, 28288, 30082, 37024, 39338, 43264, 45568, 45968, 48416, 56576, 60164, 74048, 78676, 86528, 91136, 91936, 96832, 113152, 120328, 148096, 157352, 173056, 183872, 193664, 226304, 240656, 255697, 296192, 314704, 367744, 387328, 481312, 511394, 592384, 629408, 735488, 774656, 962624, 1022788, 1184768, 1258816, 1470976, 1549312, 1925248, 2045576, 2517632, 2941952, 3850496, 4091152, 5035264, 7700992, 8182304, 10070528, 15401984, 16364608, 20141056, 32729216, 65458432, 130916864, 261833728]

約数ペア:

[(1, 261833728), (2, 130916864), (4, 65458432), (8, 32729216), (13, 20141056), (16, 16364608), (17, 15401984), (26, 10070528), (32, 8182304), (34, 7700992), (52, 5035264), (64, 4091152), (68, 3850496), (89, 2941952), (104, 2517632), (128, 2045576), (136, 1925248), (169, 1549312), (178, 1470976), (208, 1258816), (221, 1184768), (256, 1022788), (272, 962624), (338, 774656), (356, 735488), (416, 629408), (442, 592384), (512, 511394), (544, 481312), (676, 387328), (712, 367744), (832, 314704), (884, 296192), (1024, 255697), (1088, 240656), (1157, 226304), (1352, 193664), (1424, 183872), (1513, 173056), (1664, 157352), (1768, 148096), (2176, 120328), (2314, 113152), (2704, 96832), (2848, 91936), (2873, 91136), (3026, 86528), (3328, 78676), (3536, 74048), (4352, 60164), (4628, 56576), (5408, 48416), (5696, 45968), (5746, 45568), (6052, 43264), (6656, 39338), (7072, 37024), (8704, 30082), (9256, 28288), (10816, 24208), (11392, 22984), (11492, 22784), (12104, 21632), (13312, 19669), (14144, 18512), (15041, 17408)]